Top critical review
If you have Android - watch out!
Reviewed in the United States on November 16, 2018
I bought the Logitech Z906 system as a replacement for the Klipsch ProMedia 2.1 system that has built in Bluetooth. Since I was losing Bluetooth functionality, I purchased this adapter in an attempt to restore that. I just spent $300 on speakers, what's another $20 for Bluetooth functionality, right?
I purchased this in February. It's now November. I didn't find the following out until about a week ago. But now it all makes sense.
Around the time I bought this adapter, I started having problems with my Galaxy Note 8. I've found out that this issue isn't specific to Samsung phones; forum posts online originally led me to believe so, but then owners of other devices started trickling in. Google Play apps wouldn't install on their own. They'd stick at 100% downloading, and wouldn't install unless Google Play Store was restarted or the phone was restarted. Icon badges were often incorrect. Notifications would delay by minutes, sometimes hours. When you're trying to send texts, or have a Ring doorbell, this is painfully long, and once you receive the notification, it does you no good. Checking for software updates would never finish.
Months and months of troubleshooting went by. Soft resets, hard resets, reflashing the device, restore with backup, restore without backup, everything I could find online short of exchanging the device. Troubleshooting forums eventually led to two possible fixes: exchanging the device and praying, or making a completely new Google and Samsung account. Some people who had exchanged devices had reported continuing to have the problem. I had no idea why creating a new Google and Samsung account would fix it. Some people said their device would work fine at work, but as soon as they got home, chaos ensued again. They suspected it was a location or home wi-fi network issue.
I didn't want to explore either of these options, so I went with the band-aid, rather than the fix. Disabling Bluetooth and/or the Google app would provide relief from these issues, but then you couldn't use these features. I have a smart watch and Android Auto head unit in my car, so neither of these were particularly attractive options.
I suffered through an onslaught of disabling and re-enabling Bluetooth and the Google app for 9 months. Every once in a while, I'd check the same old troubleshooting threads to see if there were any updates. Months went by with no resolution, and it seemed that Samsung and Google had given up on the issue and there was no hope of a fix.
They gave up because they weren't causing the problem.
In late October, I found an update to a Google bug fix forum thread that mentioned that someone had this device, and when they disconnected it, all their problems were solved. They even provided the Amazon link to the device, and when I clicked on it, lo and behold, "You purchased this item on February 19, 2018." I jumped out of bed in the middle of the night, ran to my office, and ripped out every cord that was associated with this thing (although the power cord would probably have been enough). I subscribed to the thread. Day after day, more users chimed in with "hey, I have this device too! Thanks for the fix!"
To say I slept well that night is an understatement.
None of the problems happened anymore. Apps would automatically install, notifications would come through instantly, I could use voice commands and manage my smart watch again. I haven't had a single problem with my phone singe I unplugged the Logitech Bluetooth adapter.
See the other reviews where people say this device is greedy? It is. It always wants to connect to a paired device, even when it's disconnected. After doing hard resets, the device became unpaired, and I didn't re-pair it, so there was no notification of a pairing request. Based on my limited knowledge of wireless technologies, this device is noisy. Way too noisy. And way too clingy. I don't have proof, but I'm starting to suspect some problems I had with a wireless headset and a wi-fi repeater were caused by this device too, as they were in the same room, but I returned them, because I couldn't figure out what was wrong.
So just a word to the wise: don't let this review dissuade you from purchasing this product. It works great for what it's intended for. Just be aware of what problems it could cause, and do your research online. Don't spend 9 months ripping your hair out like me and countless other people on these forums did. If you buy this and plug it in, and start to notice some weird issues with ANY device that has wireless functionality (wifi or Bluetooth), unplug it and see if that fixes it before wasting time, money, and/or losing data on that device to troubleshoot.
You'll be glad you did.